Path: csiph.com!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder1.enfer-du-nord.net!newsfeed.eweka.nl!eweka.nl!feeder3.eweka.nl!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.002 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'attribute': 0.05; 'python': 0.09; 'exist.': 0.09; 'from:addr:ethan': 0.09; 'from:addr:stoneleaf.us': 0.09; 'from:name:ethan furman': 0.09; 'message-id:@stoneleaf.us': 0.09; 'received:184.172': 0.09; 'received:gator410.hostgator.com': 0.09; '~ethan~': 0.09; '(besides': 0.16; 'attribute,': 0.16; 'attributes:': 0.16; 'attrname': 0.16; 'esp,': 0.16; 'means.': 0.16; 'oct': 0.16; 'received:72.11': 0.16; 'received:72.11.125': 0.16; 'received:72.11.125.166': 0.16; 'retrieving': 0.16; 'wrote:': 0.17; 'subject:skip:i 10': 0.22; 'header:In-Reply-To:1': 0.25; 'header:User-Agent:1': 0.26; '[1]': 0.27; 'question': 0.27; '[2]': 0.27; "doesn't": 0.28; '-0700,': 0.29; "d'aprano": 0.29; 'steps:': 0.29; 'steven': 0.29; 'points': 0.29; "i'm": 0.29; 'fri,': 0.30; 'anybody': 0.32; 'to:addr:python-list': 0.33; 'wrong': 0.34; 'sequence': 0.35; 'something': 0.35; 'there': 0.35; '(i.e.': 0.36; 'does': 0.37; 'subject:: ': 0.38; 'object': 0.38; 'skip:o 20': 0.38; 'to:addr:python.org': 0.39; 'step': 0.39; 'header:Received:5': 0.40; 'skip:u 10': 0.60; 'different': 0.63; 'received:69.56': 0.65; 'special': 0.73; '(print': 0.84; 'ball,': 0.84; 'furman': 0.84; 'glad': 0.86; 'ethan': 0.91 Date: Fri, 05 Oct 2012 16:12:22 -0700 From: Ethan Furman User-Agent: Thunderbird 1.5.0.10 (Windows/20070221) MIME-Version: 1.0 To: python-list@python.org Subject: Re: instance.attribute lookup References: <506f668d$0$29978$c3e8da3$5496439d@news.astraweb.com> In-Reply-To: <506f668d$0$29978$c3e8da3$5496439d@news.astraweb.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator410.hostgator.com X-AntiAbuse: Original Domain - python.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - stoneleaf.us X-BWhitelist: no X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: ([192.168.10.136]) [72.11.125.166]:4518 X-Source-Auth: ethan+stoneleaf.us X-Email-Count: 1 X-Source-Cap: dG9idWs7dG9idWs7Z2F0b3I0MTAuaG9zdGdhdG9yLmNvbQ== X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 27 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1349479270 news.xs4all.nl 6916 [2001:888:2000:d::a6]:49761 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:30848 Steven D'Aprano wrote: > On Fri, 05 Oct 2012 10:39:53 -0700, Ethan Furman wrote: > >> There is a StackOverflow question [1] that points to this on-line book >> [2] which has a five-step sequence for looking up attributes: >> >> > When retrieving an attribute from an object (print >> > objectname.attrname) Python follows these steps: >> > >> > 1. If attrname is a special (i.e. Python-provided) attribute for >> > objectname, return it. > [...] >> I'm thinking step 1 is flat-out wrong and doesn't exist. Does anybody >> know otherwise? > > I'm thinking I don't even understand what step 1 means. > > What's a Python-provided attribute, and how is it different from other > attributes? Well, if /you/ don't understand it I feel a lot better about not understanding it either! :) Glad to know I'm not missing something (besides ESP, a crystal ball, and a mind-reader!) ~Ethan~